Do you call tattoos on the lower back of a woman 'tramp stamps'?

Tramp Stamps, are a growing fact of pop-culture (and some are growing as a result of our diets… different post), What’s a “Tramp Stamp?” well.. it is that tattoo that women are getting on the small of their back that is regularly exposed to the Trampstamp 2 public thanks to midriff shirts, low-rise jeans, and bikinis. Do you find then derogatory and cheap...?